Mixture for the manufacture of antistatic floor coverings and coatings

Abstract

A mixture containing a cold-curing liquid synthetic resin combination, an anti-sedimentation agent and aluminium grit is used for the manufacture of anti-static floor coverings or coatings, which are colorful or lightcolored and have a uniform electrical conductivity of good reproducibility.

What we claim is: 
     
       1. A process for the manufacture of antistatic floor coverings or coatings, which comprises a. mixing together, based on the total mixture, 30 to 45 percent by weight of a cold-curing liquid synthetic resin combination, 45 to 70 percent by weight of aluminum grit the particles of which have a length of 0.35 to 1.2 mm; 0 to 30 percent by weight of a pigment; and 0.3 to 1.1 percent by weight of a thixotropic agent.   b. applying said mixture to a base, and   c. allowing to cure.   
     
     
       2. A process according to claim 1 wherein the synthetic resin combination is an epoxide resin and a curing agent for the epoxide resin. 
     
     
       3. A process according to claim 2 wherein the epoxide resin is based on aromatic compounds. 
     
     
       4. A process according to claim 3 wherein the epoxide resin additionally contains an aliphatic epoxide resin. 
     
     
       5. A process according to claim 2 wherein the synthetic resin combination contains as curing agent a liquid aliphatic or cycloaliphatic polyamine, or a liquid adduct of a polyamine with a polyepoxide, said adduct having at least one primary amino group. 
     
     
       6. A process according to claim 2 wherein the curing agent for the epoxide resin is a liquid polyaminoamide resin. 
     
     
       7. A process according to claim 1 wherein the synthetic resin combination is based on a polyurethane. 
     
     
       8. A process according to claim 7 wherein the synthetic resin combination comprises a polyester or polyether resin having a hydroxyl number of between 1.7 and 12% and a liquid polyisocyanate as the curing agent. 
     
     
       9. A process according to claim 8 wherein the curing agent is a polyisocyanate based on diphenylmethane-4,4'-diisocyanate. 
     
     
       10. A process according to claim 1 wherein the synthetic resin combination comprises an unsaturated polyester resin, an unsaturated monomeric compound which can react therewith and a peroxide catalyst. 
     
     
       11. A process according to claim 1 wherein the synthetic resin combination is based on an acrylic resin, a monomeric compound which can react therewith and a peroxide catalyst. 
     
     
       12. A process according to claim 1 wherein the mixture contains 1 to 5 percent by weight of paraffin oil or benzine. 
     
     
       13. A process according to claim 1 wherein the thixotropic agent is silicon dioxide, montmorillonite or finely divided asbestos as the anti-sedimentation agent. 
     
     
       14. A process according to claim 1 wherein the mixture contains 50 to 60 percent by weight of aluminum grit.